Metal-planer



(NoModelJ J. S. DETRIGK.

METAL PLANER.

Patented May'29, 1883.

Fq lnven'tol":

r. Washington. a. c.

UNITED STATES.

ZPATENT OFFICE-3..

JACOB s. DETRIGK, OF BALTIMORE, MARYLAND.

METAL-PLA-NER.

SPECIFICATION forming part; of Letters Patent No. 278,518, dated May 29, 188?.

Application filed November 21. 1882. (No model.)

1 in to the accompanying drawings.

My invention relates to improvements in metalplaning machines, and has for its object to provide a planer adapted to plane pieces of work of greater width than will pass between the side uprights or posts of the ordinary planer.

The machine will first be described, and the invention will then be designated in theclaims.

In the annexed drawings, Figure lis a side elevation of part of the machine. Fig.2 is an end elevation. Fig. 3 isa top view of the single side post, cross-beam, and the saddle which 2;:

moves thereon and carries the tool.

Theletter A designates the frame or bed of an ordinary metal-planin g machine, resting on the supports A B, the reciprocating platen, and c the guides or slides on which the platen moves.

The mechanism for effecting the movement of the platen neednot here be particularly described, as the same-forms no part of the present invention. I It is sufficient to say that the platen may have any desired movement, and any suitable mechanism may be employed to that end.

The letterD desi gnates' the sin gletool-holding post at one side only of the frame. This post is made extra heavyand broad, and in the present instance, in horizontal section, is of an L shape, as shown in Fig. 3, thereby to so distribute the metal as to insure the greatest possible stiffnessor. rigidity. Instead of the L shape, thepost may have any other form which will afford the desired stiffness. The post is supported by a leg or bracket, D, projecting laterally or at a right angle from the frame, and said post is also firmly attached to thegside of the frame. The cross-beam E has bearing and is adjustable on the vertical slide or face f of the post, andtheslide or face got the cross-beamis of the same size and shape as that of, the post. The saddle I moves on the horizontal face gof the cross-beam, and is fed thereon by suitable mechanism of wellknown construction, and which, therefore, need struction and combinationthe cross-beam may be removed, and the saddle removed from the cross-beam and used on the face f of the post, both of which faces the saddle fits with equal accuracy. The movement of the saddle up and down on the post maybe eifected in the same manner as when on the cross-beam. This is a not here be more fully described. By'this com.

.great advantage upon some kindsof large or special work. A trian gular or oblique bracket, L, is attached by one end to the back of the cross-beam, and the other end bears against a vertical slide, h, on the inner side of the broad post. When the cross-beam is moved up or down, the bracket, of course, is carried with it. This bracket, it will be seen, braces the cross-beam, and is an additional means to insure stiffness and steadiness.

The planing-tool is designated by the letter j, and the metal tobe planed by the letter k.

A small bracket, n, is bolted to the side of the frame opposite that at which the post is fastened and immediately below the crossbeam, and the end of the cross-beam is provided with a clamping-socket, p. A movable bang, has its lower end attached tothe bracket, and its upper end passes through the clamping-socket. The bar maybe thus employed whenever the size of the work will permit and whenever the character of the work requires special steadiness of the cross-beam. For all general work, however, the single post without the bar will sustain the cross-beam with ample steadiness. The particular clampingsocket shown is not essential. Any suitable means to secure the bar to the end of the crossbeam will suffice. I provide, also, for staying the unsupported end of the cross beam by means of a rod, r, which is attached to the. said end and connected to the end of the frame by a bracket projecting from the side'thereof. The stay-rod has thus an inclined position, and a light rod will give great steadiness to the cross-beam. It will be understood that the stay-rod must be'adjus'ted whenever the position of the cross-beam is changed. The-advantage of this inclined stay-rod is that while it serves to steady the cross-beam it can often be used without being in the-way of a large piece of work, and it may be used whether the oblique bracket is employed or not.

As alreadystated, the tool-holdin g post may have any form which will afford the desired stiffness. I will now add that, instead of one post made-heavy and of great breadth, a post consisting of two parts may be employed, both parts being secured at one side only of the frame, and one end of the cross-beam arranged to have bearing on one part, while the oblique bracket has bearing on the other part.

Havingdescribed inyinvention, I claim and desire to secure by Letters Patent of the United States- 1-. 'A metal-planer having attached to the frame on one side only of the reciprocating platen a post to sustain the cross-beam, which said post is L shape in horizontal section, as and for the purpose set forth.

2. A metal-planer having a cross-beam provided with a horizontally-extended oblique bracket, L, and also having attachedto the frame on one side only of the platen a post provided with a vertical slide,f, for the adjustment of the cross-beam, and another vertical slide, h, as a bearing for the oblique. bracket, as set forth.

3. A metal-planer having attached to the frame on one side only of the platen a post provided with a vertical slide, f, for the adjustment of the cross beam,a cross-beam having a horizontal slide, g, and a, tool-carrying saddle, 1, adapted to be used on either slide, as and for the purpose set forth.

4. A metal-planer having attached to'the frame on one side only of the platen a post, a cross-beam, one end of which is attached to the post, and a stay-rod, 1", connecting the other or unsupported end of the cross-beam with the end of the frame, as and for the purpose set forth. I v

In testimony whereof I affix my signature, in presence of two witnesses, this 20th day of November, 1882.

JACOB S. DETRIOK.

Witnesses:

JNo. 'l. MADDOX, CHAS. B. MANN. 

